Finding the Fourth Proportional to 1,217,941,696.04, 1,680,761,162.41 and 661,024,743.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,941,696.04 : 1,680,761,162.41 = 661,024,743.10 : x
2. Step 2: Convert to fraction form
   1,217,941,696.04/1,680,761,162.41 = 661,024,743.10/x
3. Step 3: Cross multiply
   1,217,941,696.04x = 1,680,761,162.41 × 661,024,743.10
4. Step 4: Simplify right side
   1,217,941,696.04x = 1,111,024,715,588,673,152
5. Step 5: Solve for x
   x = 1,111,024,715,588,673,152/1,217,941,696.04
6. Step 6: Final answer
   x = 912,215,025.73